Doctor Who

Doctor Who is a British science fiction television series that depicts the adventures of a time-traveling alien known only as "The Doctor". Originally premiering in 1963, it is listed in the Guinness Book of World Records as the longest running science fiction television series in history though with breaks in production.

Appearances/References

Sheldon's Saturday morning ritual includes getting up at 6:15 am and watching Doctor Who on BBC America. This morning ritual was once disrupted when Penny crashed out on the guys' couch.

A replica of a Dalek (one of the Doctor's most famous adversaries) is sometimes visible on one of the shelves in Leonard and Sheldon's living room.

In the season 6 episode "The Holographic Excitation," Sheldon's list of couple's costumes he likes includes "The Doctor & A Dalek." Raj gets a TARDIS photo booth for Stuart's Halloween party, leading Sheldon to call it a "major rager." Later, Leonard (as Doctor Albert Einstein) "explains the theory of relativity" to Penny (who is dressed as a sexy cop) in the photo booth (twice!).Note: Penny's costume may be a reference to (A) Eleventh Doctor companion Amy Pond (played by Karen Gillan), who wore a "sexy cop" costume in her first episode, "The Eleventh Hour", or (B) the TARDIS itself, which according to the episode "The Doctor's Wife" likes to be known as "sexy."

In the season 7 episode "The Romance Resonance," a line in the song "If I Didn't Have You" contains the lyrics "I'd be Doctor Who without the TARDIS." Later, Leonard can be seen wearing a t-shirt featuring the Seal of Rassilon, a Doctor Who motif.

At the end of the season 7 episode "The Itchy Brain Simulation", as Raj is shouting at himself in the mirror, a Dalek "To victory!" poster from Doctor Who's Victory of the Daleks is seen in the background.

In the season 8 episode "The Skywalker Incursion", Bernadette and Howard have a dispute over whether or not to sell off Howard's TARDIS. They later agree to decide using a game of table tennis with their friends competing. Bernadette bribes Raj by telling him having the TARDIS at his apartment, with the backdoor facing his apartment door, it would look as though it was "bigger on the inside". Penny mentions that the Doctor was from Gallifrey and it was sad that she knew that. In the end Amy wins the TARDIS and puts it in her bedroom, where Sheldon enters dressed as the Fourth Doctor and mentions he's being chased by Daleks and that he needed to reset the time circuits, but then claims he left his sonic screwdriver behind and runs back to get it. Amy had hoped that Sheldon would have stayed in her bedroom.